as you move from left to right across a period in the periodic table (for example, from na to ar), the energy to remove the outermost electron from an

a) generally increases.

b) generally decreases, because the radius of the elements from na to ar increases.

c) does not change because they are in the same period

d) varies unpredictably

Describe the interaction that occurs between two objects with the same electrical charge.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.